{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical"], "input": "DNA polymerases replicate DNA by catalyzing the template - directed polymerization of deoxynucleoside triphosphate ( dNTP ) substrates onto the 3 ' end of a growing DNA primer strand ."}
{"Chemical": ["deoxynucleoside triphosphate", "dNTP"]}